Dear SPM'ers
When entering a user specified regressor to a design matrix, SPM prompts you
for a vector of data with the same number of elements as you have scans in
your time series. As SPM then divides the duration of each scan into 16 time
bins, the user specified regressor will presumably then be interpolated to
fit the time bins?
We have a user specified regressor sampled at a temporal resolution of much
better than once per TR, and it shows significant variation within the
period of 1 TR. We'd like to be able to enter our user specified regressor
with the same temporal sampling resolution as the number of time bins (16 by
default). Does anybody know a way of doing this?
Thanks,
David Field
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Dr David Field
Department of Psychology
Room 1S20
Earley Gate
University of Reading
RG6 6AL
+44 (0)118 3785004
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